Top-down fabrication of α-Fe2O3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties
In this work, we report a facile top-down approach to fabricate uniform single-crystal α-Fe2O3 nanodiscs via selective oxalic acid etching. Phosphate ions are employed as a capping agent to control the etching to along the [001] direction. We also show that α-Fe2O3 melon-like microparticles with con...
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sg-ntu-dr.10356-949502020-03-07T11:35:34Z Top-down fabrication of α-Fe2O3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties Chen, Jun Song Zhu, Ting Yang, Xiao Hua Yang, Hua Gui Lou, David Xiong Wen School of Chemical and Biomedical Engineering DRNTU::Engineering::Chemical engineering::Biochemical engineering In this work, we report a facile top-down approach to fabricate uniform single-crystal α-Fe2O3 nanodiscs via selective oxalic acid etching. Phosphate ions are employed as a capping agent to control the etching to along the [001] direction. We also show that α-Fe2O3 melon-like microparticles with contrasting textural properties can be generated using the same approach. The etched particles exhibit a much larger total pore volume and average pore size compared to the pristine ones, thus serving as the possible origin for their greatly enhanced capacity retention when tested as potential anode materials for lithium-ion batteries. 2012-05-22T08:05:48Z 2019-12-06T19:05:13Z 2012-05-22T08:05:48Z 2019-12-06T19:05:13Z 2010 2010 Journal Article Chen, J. S., Zhu, T., Yang, X. H., Yang, H. G. & Lou, X. W. (2010). Top-Down Fabrication of α-Fe2O3 Single-Crystal Nanodiscs and Microparticles with Tunable Porosity for Largely Improved Lithium Storage Properties. Journal of the American Chemical Society, 132 (38), 13162–13164. https://hdl.handle.net/10356/94950 http://hdl.handle.net/10220/8113 10.1021/ja1060438 en Journal of the American chemical society © 2010 American Chemical Society. |
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DRNTU::Engineering::Chemical engineering::Biochemical engineering Chen, Jun Song Zhu, Ting Yang, Xiao Hua Yang, Hua Gui Lou, David Xiong Wen Top-down fabrication of α-Fe2O3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties |
| description |
In this work, we report a facile top-down approach to fabricate uniform single-crystal α-Fe2O3 nanodiscs via selective oxalic acid etching. Phosphate ions are employed as a capping agent to control the etching to along the [001] direction. We also show that α-Fe2O3 melon-like microparticles with contrasting textural properties can be generated using the same approach. The etched particles exhibit a much larger total pore volume and average pore size compared to the pristine ones, thus serving as the possible origin for their greatly enhanced capacity retention when tested as potential anode materials for lithium-ion batteries. |
| author2 |
School of Chemical and Biomedical Engineering |
| author_facet |
School of Chemical and Biomedical Engineering Chen, Jun Song Zhu, Ting Yang, Xiao Hua Yang, Hua Gui Lou, David Xiong Wen |
| format |
Article |
| author |
Chen, Jun Song Zhu, Ting Yang, Xiao Hua Yang, Hua Gui Lou, David Xiong Wen |
| author_sort |
Chen, Jun Song |
| title |
Top-down fabrication of α-Fe2O3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties |
| title_short |
Top-down fabrication of α-Fe2O3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties |
| title_full |
Top-down fabrication of α-Fe2O3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties |
| title_fullStr |
Top-down fabrication of α-Fe2O3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties |
| title_full_unstemmed |
Top-down fabrication of α-Fe2O3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties |
| title_sort |
top-down fabrication of α-fe2o3 single-crystal nanodiscs and microparticles with tunable porosity for largely improved lithium storage properties |
| publishDate |
2012 |
| url |
https://hdl.handle.net/10356/94950 http://hdl.handle.net/10220/8113 |
| _version_ |
1681046520842944512 |